Bed.



M. W. INGRAHAM.

BED.

APPLICATION FILED DEO.13,1909.

Patented Feb. M, 1911.

2 SHEETS-SHEET 2` fr N 00000000000000000000000000000 UNK E L E mm E M 0r00000@00000000000000000000 00000060000000000@000000000 0.)000000000000000000000@000)0V 0w00000w0000000a0.0%T000m0 0 00000f000 00 000 u vz tutory @my MATTHEW W. INGRAHAM, GLACE BAY, NOVA SCOTIA,CANADA.

BED.

To all whom 'it may concern.

Beit known that l, MA'rrimw lV. Lv (uml-IAM, a citizen of the United States. residing at Glace. Bay, in the Province of Nova Scotia, Dominion ot Canada, have invented new and useful Beds, of which the following is a specification.

This invention has reference to improvements in beds'but more particularly relates to the hed bottom and supports therefor.

In accordance with the present. invention there is provided an elastically supported bed. bottom of Vsectional character so that the bed bottom when removed from the hed frame may be readily folded into, small e'on'ipass and is so constructed that in the event l,of any portion becoming broken or damaged such portion may be readily rcmoved and replaced by a ne\\"portion of like character. The invention also comprises other features which will be better understood from a consideration of the following detail description taken in connection with the accompanying drawings forming a part of this specification, in which drawings,

Figure 1 is a plan view `of a bed 'frame with the bedbottomnttached thereto. Fig. 2 is an end elevation of the bed frame. Fig. 3 isa detail View of a slightly modified form of the structure shown in Fig. 1. Fig. 4t is a plan View of a different form of Abed bot-tom from that shown in Fig. 1, and embodying the invention. view of a different f orm ofhinge than shown in Fig. 4. Fig. 6 is a detail section of a modified form of a part of the structure of Figs. 1 and 4;.

Referring t0 the drawings there is shown a bed frame composed of end pieces 1, 2, and side pieces 3, the frame being supported upon legs 4 in the usual manner. The 'end piece 1 is formed with two rows of perforations 'none above the other. The end 2 'is provided with a longitudinal series of per foi-ations G.

The bed bottom, as shown in Fig. 1, is' made upotlongitudinal strips each com posed of short members 7 coupled together at their meeting ends bv hinges 8 which may be in the form of closed loops with a central strengthenii'ig member. All the members 7 may be joined by cross strips 9 extending'` entirely across the said bottom and riveted or otherwise secured to the members 7. The cross members 9 connect Fig. 5 is a detail` Specification of Letters Patent. Application led December 13, 1909. Serial No. 532,836.

ratenmlreb. 14, 1911.

the eorrespoiidingsections 7 of the longitudinal members of the said bottom into groups each -of which groups is hinged to another group, the' hinges extending cross- '60 wise oi' the bed frame in theparticular structure shown in the drawings.

It will be understood that one or more cross members may be used with each group of members 7, or these cross members. may

eren be omitted for the purpose of'cheapening the construction of the hed bottom. rl`he end members 7 of the saidbottom are formed with eleris-like loops 10 each receiving one end of a .short helical spring 11 the other end ot which at. one end ofthe bed bottom is secured in a perforation 6 in the end lof the bed frame, while the end of each helical spring remote-from the Sections at the other eudfof the hed 'bot- 75 tom, is secured in a perforation 'li'ina cross bar 13 serving to put. the entireliedbottom underequal strain throughout. This' cross bar has passed through/it about ind' l Vway of its length the threaded end of a bolt or screw. 14 ytaking into a threaded boss at the center of aspring yoke 14. The bolt 14 extends through one of the central pe1fo' rations 5 of the series of perforations in the l end 1 and extending through the end perfo- 85 rations'of'the corresponding .one of these series are pins 15 also extending through appropriate perforations in the bar 13, and these p'ins 15 are each provided with a longitudinal series of perforations 16 for the 90 reception of a suitable locking pin 16' designed to engage the inner edgerof the bar 13 when the bed bottom is subjected to a predetermined weight. In other words,

when the bolt 14 is turned in one direction, 95

it pulls on the bar 13 throughthe yoke 14', this yoke yielding to a tent because of its resilient nat-ure.

16 are then inserted into certain of Pins the openings 16`bet-ween the bar 13 and the 1(1)() strips 7 so that, when the bed bot-tom is subjected to a predetermined weight, the bar 13 will be pulled along the guides 15 until further movementof the bar is .stopped by the pins 16. During this sliding movement of 105 the bar on the guide pins l5, the yoke 14: will yield but. after the bar has been brought to a stop by the pins 16', the entire yielding act-ion will occur in the springs 11.

From the foregoing 'it willbe noted that 110,1

when a weight is first applied to the bed bottom, both the springs 11 and the spring greater or less exspending end of the bed bottom as may be tirely vnew bed bottom.'

yoke 1-1l will give but, after the yoke 14: has yielded to its greatest extent, this yielding .action is reduced by the elimination of the yoke 14. Importance is attached to the fact that, should the yoke 14: brealefrom any cause, the bar 13 will be prevented from pulling ofi' of the guide pins 15 by the stop pins 16. While these pins 15 are shown as headed at the outer end to engage the outer face of the bar 1 of the bed frame, it will be understood that other securing means for these pins may be provided.

At appropriate points along the outer longitudinal members of the bed bottom are clevises 17 each receiving one end of a helical spring 18, the other end of which is te-A cured in'an appropriate perforation in-the corresponding side bar 3 of the bed frame.

By replacing any or all the rows of hinges S with helical springs as indicated at 20 in Fig. 3 the bed bottom may be made as elastic as desired.

The different rows of perforations 5 in the end member l of the bed frame provide means for elevating or depressing the corref found expedient. Thile but two rows'lof perforations o are shown in the drawings it'. will be understood thatouerow'may e employed or more than two rows may be provided. lVith a bed constructed as described \any desired degree of elasticity -may be imparted to the bed bottom by means of thestraining bar 13 and the corresponding end of the bed bot-tom'may be elevated or may depressed as may be found desirable. Furthermore thebed bottom is foldable into a small compass thus facilitating storage or transportation. Moreover, if a. portlonof the bed bottom becomes damaged it is easily replacedwithout the necessity of obtaining an en- Instead of constructing the bed bottom of strips 7 and 9, it may be made of sheets 21 of perforated or reticulate'd steel connected together at the meeting edges by hinges 8, as shown in Fig. 4, or by hinges 9.2 of the piano type, as indicated in Fig. 5.

' The sheets 21 may be of any desired area and the hinge'connections may be of any suitable construction including the form shown in Fig. 3.l The perforations of the sheets 21 shown in the drawings are to be taken as illustrative only since any .style or arrangement ofthe perforations may be used.'

Instead of providing thepins 15 `with perforations and locking the bar 13 with otherY pins adapted to the perforations, each pin 15 may'have a longitudinal series of teeth 23 formed along one side anda pawl 24 may be carried by the bar 13 in operative relationto the teeth 23 so that when the bar 13 is moved by the screw let the pawls Qtavill click over the teeth Q3 and lock the bar in the adjusted position.

What. is 'Claimed is:

The combination with a bed frame, of guide pins extending inwardlyfrom one end thereof, a bar slidably mounted on the pins, a spring yoke extending inwardly from the bar, threaded means loosely and rcvolubly .mounted within the bar and said end of the frame and engaging the yoke to 'shift said yoke and the bar in one direction, stop pins adj ustably engaging the guide pins for limitin 'the movement of the bar away from said en of the frame, a bed bottom, and. spring connections between 4the bed bottom and the bar andi the other end of the frame respectively In .testimony that I claim the foregoing as my own, I -have hereto aflixed my signature in the resenee of two Witnesses. A

TTHEW INGRAHAM.

Witnesses:

JOHN J. MeKENzni, J oHN A. McLEon. 

